Door-operating mechanism



May 11 1926'.

L... P. HYNES DOOR OPERATING MECHANISM Filed April 12 1923 llllllll lllll llllllllo lll Hun llllllll |LEE P. HYNES Patented May 11, 1926.

UNITED STATES PATENT OFFICE.

nun r. HYNES, or ALBANY, NEVT- vonK, ASSIGN'OR TO ooNsoLrnArEn oAn nnArrNe GOMPANY, or ALBANY, New YORK, CORPORATION or wnsr VIRGINIA.

noon-ornnArrNe MECHANISM.

Application filed. April 12, 1923. Serial No. 631,702.

For a detailed. description of the present form of my invention, reference may be had to the following specification and to the accompanying drawing forming a part thereof, wherein Fig. 1 shows a door with my device applied thereto;

Fig. 2 shows a section of the roller and channel-guide therefor;

Fig. 3 shows the standard form. of slide heretofore used;

Fig. 4 is a front view and V Fig. 5 a section of the shaftconnection.

My invention relates to an improved form of guide for operating a door by means of a radial door-arm which is motor-operated.

It has been the practice for a long time to operate a reciprocating door froma rotating motor-driven shaft by means of a radial arm projecting laterally from the end of the shaft and having a vertically sliding connection at its outer end with the door along its rear edge. The standard form of connection between the outer end of the arm and the door has for many years been one wherein a round rod has been applied to' the rear edge of the door and parallel therewith but spaced therefrom an inch or thereabouts except at its ends which are screwed or bolted to the door. On this rod is a sliding sleeve or traveller to one side of which the end of the arm is pivoted. Referring to Fig. 3 of the drawing, A is the door, B is the round rod aforesaid, C is the sleeve sliding thereon and D is the radial, motor-driven arm. One difficulty with this arrangement is the amount of friction therein, the significance of which resides not so much in the greater energy required as in the size of motor necessary for effective operation of the door. Moreover, a firm connection of the rod to the narrow door at only its upper and lower ends is not easy, while the exposure of the sliding-sleeve at the rear of the door causes the blocking of the door by objects getting in the path of the sleeve. It is also diiiicult to take apart and assemble. In view of these and other features I have devised a new arrangement by which the aforesaid objections are eliminated.

Referring to Figs. 1 and door-operating attachment in the form of a channel shaped guide on the rear edge of the door A with a retaining flange 6 projecting inwardly along its outer sides. Its inner 2, E represents a side is angular in cross section to provide a seat to-engage the edge of the door and havlng a flange a, which overlaps and is seated on the face of the door and'secured thereto by bolts G. This affords a simple and firm connection of the guide E to the door the bolts G being now subject to a shearing stress by the door-opening pull and are also distributed along the entire length of the guide, In this channel is a roller F journalled on the end of the door-arm D by ball bearings. The door-arm is rotated approximately 180 degrees by the motor shaft K to the. end of which. it is attached. This attachment is by means of disc H having on its face a diametrical groove or guide in which the arm .D is seated, being secured in the desired position therein by a screw R. By this arrangement substantially all the friction is transferred to the ball bearings of the roller and becomes insignificant in amount. The rear flange of the channel E protects the roller from interference by external objects as it travels up and down in the channel. To disconnect the motor from the door for removal or installation of the latter, it is only necessary to bring the door toits midway position with the channel of the guide in line with the groove on disc H when the door-arm, by loosening screw R, can be lifted up or dropped down, the roller coming out of the open upperor lower end of the channel-guide E. These advantages are of material importance in the construction and operation of the apparatus.

What- I claim as new and desire to secure by Letters Patent is: i V

1. In a door-operating mechanism the combination with a door of an operating arm mounted to rotate upon a fixed axis, an open ended guide on one end of the door and positioned to pass said axis during movement of the door, and a pivoted traveler on the doorarm movable along said guide and removable therefrom when the guide channel is opposite said axis.

2. In a door-operating mechanism the combination with a' door of an operating arm mounted to rotate upon a fixed axis, an open ended guide on one'end of the door and positionedto pass said axis during movement of the door, a pivoted traveler on the door arm'movable along said guide and removable therefrom when the guide channel is. opposite said axis, and means whereby said arm may be longitudinally adjusted With respect to its axis.

3. A door-operating mechanism comprising a rotating arm with its motor, a guide connecting the arm with the motor shaft, an open-ended guide on the edge of the door adapted to come into line With the guide on the motor shaft, and a pivotal traveller on the said arm engaging the guide on the door and removable therefrom together With the arm through the open end of the guide.

4. In a dooroperating mechanism, a guide member having a channel shaped guide provided with a retaining flange at its outer side, its inner side being angular in cross section to provide a door-edge-engaging seat and a flange positioned to overlap the side of a door.

Signed at Albany, county of Albany and State of s ew York, this 9th day of April, 1923. V

LEE P. HYNES. 

